<link rel="stylesheet" href="{$cssUrl}left.css">
<button><a href="{$url}Navigation/index" target="right">导航栏列表</a></button><br>
<button><a href="{$url}Navigation/addNavigation" target="right">添加导航栏</a></button><br>
<button><a href="{$url}Navigation/logo" target="right">logo管理</a></button><br>